What a week for Justin Bieber! The pop sensation just debuted his second ladies fragrance, Girlfriend, and dropped his latest studio effort, Believe, Monday night. His streak continues tonight with the debut of his two-night television special, "All Around the World," on NBC. There's just no stopping him! Help the singer celebrate his continued success by taking a look back at his Hollywood transformation in the gallery, an evolution from shaggy-haired pre-teen to cropped superstar. Then, tune into NBC tonight and tomorrow night at 8 pm ET/PT to catch "All Around the World."